lte-test-radio-link-failure.h

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/*
 * Copyright (c) 2018 Fraunhofer ESK
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Vignesh Babu <ns3-dev@esk.fraunhofer.de>
 */
 
#ifndef LTE_TEST_RADIO_LINK_FAILURE_H
#define LTE_TEST_RADIO_LINK_FAILURE_H
 
#include <ns3/lte-ue-rrc.h>
#include <ns3/mobility-model.h>
#include <ns3/net-device-container.h>
#include <ns3/node-container.h>
#include <ns3/nstime.h>
#include <ns3/test.h>
#include <ns3/vector.h>
 
#include <vector>
 
namespace ns3
{
 
class LteUeNetDevice;
 
}
 
using namespace ns3;
 
/**
 * \brief Test suite for
 *
 * \sa ns3::LteRadioLinkFailureTestCase
 */
class LteRadioLinkFailureTestSuite : public TestSuite
{
  public:
    LteRadioLinkFailureTestSuite();
};
 
/**
 * \ingroup lte
 *
 * \brief Testing the cell reselection procedure by UE at IDLE state
 */
class LteRadioLinkFailureTestCase : public TestCase
{
  public:
    /**
     * \brief Creates an instance of the radio link failure test case.
     *
     * \param numEnbs number of eNodeBs
     * \param numUes number of UEs
     * \param simTime the simulation time
     * \param isIdealRrc if true, simulation uses Ideal RRC protocol, otherwise
     *                   simulation uses Real RRC protocol
     * \param uePositionList Position of the UEs
     * \param enbPositionList Position of the eNodeBs
     * \param ueJumpAwayPosition Vector holding the UE jump away coordinates
     * \param checkConnectedList the time at which UEs should have an active RRC connection
     */
    LteRadioLinkFailureTestCase(uint32_t numEnbs,
                                uint32_t numUes,
                                Time simTime,
                                bool isIdealRrc,
                                std::vector<Vector> uePositionList,
                                std::vector<Vector> enbPositionList,
                                Vector ueJumpAwayPosition,
                                std::vector<Time> checkConnectedList);
 
    ~LteRadioLinkFailureTestCase() override;
 
  private:
    /**
     * Builds the test name string based on provided parameter values
     * \param numEnbs the number of eNB nodes
     * \param numUes the number of UE nodes
     * \param isIdealRrc True if the Ideal RRC protocol is used
     * \returns the name string
     */
    std::string BuildNameString(uint32_t numEnbs, uint32_t numUes, bool isIdealRrc);
    /**
     * \brief Setup the simulation according to the configuration set by the
     *        class constructor, run it, and verify the result.
     */
    void DoRun() override;
 
    /**
     * Check connected function
     * \param ueDevice the UE device
     * \param enbDevices the ENB devices
     */
    void CheckConnected(Ptr<NetDevice> ueDevice, NetDeviceContainer enbDevices);
 
    /**
     * Check if the UE is in idle state
     * \param ueDevice the UE device
     * \param enbDevices the ENB devices
     */
    void CheckIdle(Ptr<NetDevice> ueDevice, NetDeviceContainer enbDevices);
 
    /**
     * \brief Check if the UE exist at the eNB
     * \param rnti the RNTI of the UE
     * \param enbDevice the eNB device
     * \return true if the UE exist at the eNB, otherwise false
     */
    bool CheckUeExistAtEnb(uint16_t rnti, Ptr<NetDevice> enbDevice);
 
    /**
     * \brief State transition callback function
     * \param context the context string
     * \param imsi the IMSI
     * \param cellId the cell ID
     * \param rnti the RNTI
     * \param oldState the old state
     * \param newState the new state
     */
    void UeStateTransitionCallback(std::string context,
                                   uint64_t imsi,
                                   uint16_t cellId,
                                   uint16_t rnti,
                                   LteUeRrc::State oldState,
                                   LteUeRrc::State newState);
 
    /**
     * \brief Connection established at UE callback function
     * \param context the context string
     * \param imsi the IMSI
     * \param cellId the cell ID
     * \param rnti the RNTI
     */
    void ConnectionEstablishedUeCallback(std::string context,
                                         uint64_t imsi,
                                         uint16_t cellId,
                                         uint16_t rnti);
 
    /**
     * \brief Connection established at eNodeB callback function
     * \param context the context string
     * \param imsi the IMSI
     * \param cellId the cell ID
     * \param rnti the RNTI
     */
    void ConnectionEstablishedEnbCallback(std::string context,
                                          uint64_t imsi,
                                          uint16_t cellId,
                                          uint16_t rnti);
 
    /**
     * \brief This callback function is executed when UE context is removed at eNodeB
     * \param context the context string
     * \param imsi the IMSI
     * \param cellId the cell ID
     * \param rnti the RNTI
     */
    void ConnectionReleaseAtEnbCallback(std::string context,
                                        uint64_t imsi,
                                        uint16_t cellId,
                                        uint16_t rnti);
 
    /**
     * \brief This callback function is executed when UE RRC receives an in-sync or out-of-sync
     * indication
     * \param context the context string
     * \param imsi the IMSI
     * \param rnti the RNTI
     * \param cellId the cell ID
     * \param type in-sync or out-of-sync indication
     * \param count the number of in-sync or out-of-sync indications
     */
    void PhySyncDetectionCallback(std::string context,
                                  uint64_t imsi,
                                  uint16_t rnti,
                                  uint16_t cellId,
                                  std::string type,
                                  uint8_t count);
 
    /**
     * \brief This callback function is executed when radio link failure is detected
     * \param context the context string
     * \param imsi the IMSI
     * \param rnti the RNTI
     * \param cellId the cell ID
     */
    void RadioLinkFailureCallback(std::string context,
                                  uint64_t imsi,
                                  uint16_t cellId,
                                  uint16_t rnti);
 
    /**
     * \brief Jump away function
     *
     * \param UeJumpAwayPositionList A list of positions where UE would jump
     */
    void JumpAway(Vector UeJumpAwayPositionList);
 
    uint32_t m_numEnbs;                    ///< number of eNodeBs
    uint32_t m_numUes;                     ///< number of UEs
    Time m_simTime;                        ///< simulation time
    bool m_isIdealRrc;                     ///< whether the LTE is configured to use ideal RRC
    std::vector<Vector> m_uePositionList;  ///< Position of the UEs
    std::vector<Vector> m_enbPositionList; ///< Position of the eNodeBs
    std::vector<Time>
        m_checkConnectedList;    ///< the time at which UEs should have an active RRC connection
    Vector m_ueJumpAwayPosition; ///< Position where the UE(s) would jump
 
    /// The current UE RRC state.
    LteUeRrc::State m_lastState;
 
    bool m_radioLinkFailureDetected;      ///< true if radio link fails
    uint32_t m_numOfInSyncIndications;    ///< number of in-sync indications detected
    uint32_t m_numOfOutOfSyncIndications; ///< number of out-of-sync indications detected
    Ptr<MobilityModel> m_ueMobility;      ///< UE mobility model
 
}; // end of class LteRadioLinkFailureTestCase
 
#endif /* LTE_TEST_RADIO_LINK_FAILURE_H */